The production of thermal photons from the quark gluon plasma phase is estimated by using the complete next-to-leading order photon rates from Refs. [1]}, [2]}. We use the parameterized rates from Ref. [3]} to calculate the photon production from the hot hadronic matter phase. The emission rates (\(R=EdN/d^3pd^4x\) ) from QGP and hadronic matter phases are integrated over the space-time history to estimate the total thermal production and anisotropic flow.
The flow coefficients \(v_n\)  are calculated as:
\(v_n (p_T) \ = \ \frac{\int _0^{2\pi } \,d\phi \,{\rm cos} [\,n (\phi -\psi _{n})]\,\frac{dN}{p_T dp_T dy d\phi }}{\int _0^{2\pi }\,d\phi \,\frac{dN}{p_Tdp_Tdy d\phi }},\) 
